Pendulum-adjustment for clocks



(No Model.)

Z. R. NILES.

PBNDULUM ADJUSTMENT FOR CLOCKS.

No. 268,524. Patented Deo. 5, 1882.

PATENT OFFICE.

ZERAH R. NILES, OF ONEIDA, NFV YORK.

PENDULUM-ADJUSTM ENT FOR CLOCKS.

SPECIFICATION forming part of Letters Patent No. 268,524, dated December 5, 1882.

Application filed September, 1882. (No model.)

4To all whom it may concern:

Be it known that I, ZERAH R. NILEs, of Oneida, inthe county of Madison, in the State ot' New York, have invented new and useful l Improvements in Pendulum-Clocks, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact-description.

This invention relates to improved means for preventing too deep entrance of the pallets ot' the verge between the teeth of the escapeinent-wheel and the resultant stoppage ot' the clock incident to displacement of the clock from a true perpendicular position; and it consists essentially in the combination of a clasp embracing the pendulum-rod between laterally-elongated friction-bearings, a guidewire extended from the verge and connected with the clasp, and banking-pins arranged to limit the motion ot' the guide-wire, all as hereinafler more fully described, and specifically set forth in the claims.

Referring to the annexed drawings, Figures 1 and 2 are front views of a clock provided with my improvements, showing it in different positions; and Fig. 3 is au enlarged side View of the clasp, which is connected withthe pendulum-rod.

Similar letters of reference 'indicate corresponding parts.

A denotes the escapement-wheel, B the verge, and P the pendulum-rod, all arranged y and connected to the frame F in the usual manner.

This class of clocks, when in proper order, require a perfect perpendicular position in order to produce a perfect escapement of the pallets a a ot' the verge on'the escapement-wheel B, owing to the natural equalized vibration of the pendulum in opposite direction from a perpendicular line, and the tilting oft-heclock from a perfect perpendicular position causes the pendulumto throw one of the pallets too deep into the interstices between the teeth of the escapement-wheel, and thereby stops the running of the clock. This effect I prevent by the following instrumen talities z To the pendulumrod I connect a self-adjusting clasp in the form of a plate, C, having a horizontally-elongated base, b, and a spring-bail, c, attached to the two edges ot' said base and extended upward there from. The pendulum-rod P, passing between the plate C and bail c, causes said plate to become clasped thereon by the pressure of the bail c on the pendulum-rod. The upper end ot the plate O is provided with a projection or offset, a, which is slotted to engage the usual thin flexible upperportion ofthependulum-rod. On the edge ot' the plate O is attached vertically a wire, forming a vertically-elongated loop or slot, d, through which projects the end of the guide-wire c, the opposite end ot' which is rmly connected to the verge B.

r r are two stop-pins or banking-pins, ixed to the frame F at opposite sides ofthe guidewire e, and at such a distance asunder as to contine the vibration of said guide-wire within proper limits to maintain a perfect escapeinent of the pallets of' the verge on the escapementwheel.

rIhe operation of the described devices is as follows: When the clock stands in a perfect perpendicular position, as illustrated in Fig.

l of the drawings, the clasp C normally as sumes a central position on the pendulum-rod, there being no strain to displace it; but in case the clock is placed in an inclined position, as shown in Fig. 2 of the drawings, then the gravity of the pendulum causes the guidewire c, by its collision with the banking-pins 1' r and its connection with the elongated loop d of the clasp, to draw the base ot' the clasp C to one side on the pendulum-rod, the connection of the slotted projection a with the flexible upper portion of the pendulum-rod serving as a fulcrum in the aforesaid movement of the clasp. The spring-bail c produces a sufficient frictional hold of the clasp on the pendulum-rod to cause the latter to carry with it in its vibrations the said clasp in its shifted position,and thus maintain the clock in operation. i

It will be observed that the spring-bail c adapts the clasp to be attached to pendulumrods of different sizes, and maintains uniform the frictional hold of the clasp on the pendulum-rod. rIhe width of the base l) of. the clasp can be gaged according to the height of the clock and sweep of the pendulum.

Having described my invention, what I claim as new,and desire to secure byLetters Patent, is-- IOO l. In a pendulum-clock, the combination of engaging the guide d, and the banking-pins a clasp embracing the pendulum-rod between 1* r, all as described and shown. laterally-clon gated frictional bearin gs, a guide- In tcstimonywhereof I have hereunto si gned Wire extended from the verge and connected my name and affixed my seal, in the presence oi' r 5 5 with the clasp, and banking-pins arranged to two attesting Witnesses, at Syracuse, in the limit the motion of the guide-Wire, substancounty of Onondaga, in the State ot'NeW York,

tially as set forth. this 12th day 0i' September, 1882.

2. The combination, with a pendulum and ZERAH R. NILES. lL. SQ] g verge, of the clasp consisting of the plate C, Witnesses: ro having the slotted projection u, broad base b, WM. C. RAYMOND,

spring-bail c, and guide d, the guide-Wire e, FRED. H. GIBBS. 

